<template>
  <div class="login">
    <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">{{tenantData.tenantNameShort?tenantData.tenantNameShort:''}}</h3>
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" type="text" size="large" auto-complete="off" placeholder="账号">
          <template #prefix><svg-icon icon-class="user" class="el-input__icon input-icon" /></template>
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <input type="password" hidden autocomplete="new-password" />
        <el-input v-model="loginForm.password" type="password" size="large" auto-complete="off" placeholder="密码" @keyup.enter="handleLogin">
          <template #prefix><svg-icon icon-class="password" class="el-input__icon input-icon" /></template>
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaEnabled">
        <el-input v-model="loginForm.code" size="large" auto-complete="off" placeholder="验证码" style="width: 63%" @keyup.enter="handleLogin">
          <template #prefix><svg-icon icon-class="validCode" class="el-input__icon input-icon" /></template>
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img" />
        </div>
      </el-form-item>
      <!-- <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox> -->
      <el-form-item style="width:100%;">
        <el-button :loading="loading" size="large" type="primary" style="width:100%;" @click.prevent="handleLogin">
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div style="float: right;" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2018-2024 lic.pub All Rights Reserved.</span>
    </div>
  </div>
</template>

<script setup>
  import { getCodeImg, loginGetCodeId } from "@/api/login";
  import Cookies from "js-cookie";
  import { encrypt, decrypt } from "@/utils/jsencrypt";
  import useUserStore from '@/store/modules/user'
  import { useRoute, useRouter } from 'vue-router'
  import { setTenant, removeTenant } from "@/utils/auth"
  const userStore = useUserStore()
  const route = useRoute();
  const router = useRouter();
  const { proxy } = getCurrentInstance();
  const tenantData = ref({})
  const loginForm = ref({
    username: "",
    password: "",
    rememberMe: false,
    code: "",
    uuid: ""
  });
  const baseUrl = import.meta.env.VITE_APP_BASE_API;
  const loginRules = {
    username: [{ required: true, trigger: "blur", message: "请输入您的账号" }],
    password: [{ required: true, trigger: "blur", message: "请输入您的密码" }],
    code: [{ required: true, trigger: "change", message: "请输入验证码" }]
  };

  const codeUrl = ref("");
  const loading = ref(false);
  // 验证码开关
  const captchaEnabled = ref(false);
  // 注册开关
  const register = ref(false);
  const redirect = ref(undefined);

  watch(route, (newRoute) => {
    redirect.value = newRoute.query && newRoute.query.redirect;
  }, { immediate: true });


  function handleLogin() {
    proxy.$refs.loginRef.validate(valid => {
      if (valid) {
        loading.value = true;
        // 勾选了需要记住密码设置在 cookie 中设置记住用户名和密码
        if (loginForm.value.rememberMe) {
          Cookies.set("username", loginForm.value.username, { expires: 30 });
          Cookies.set("password", encrypt(loginForm.value.password), { expires: 30 });
          Cookies.set("rememberMe", loginForm.value.rememberMe, { expires: 30 });
        } else {
          // 否则移除
          Cookies.remove("username");
          Cookies.remove("password");
          Cookies.remove("rememberMe");
        }
        // 调用action的登录方法
        userStore.login(loginForm.value).then(() => {
          const query = route.query;
          const otherQueryParams = Object.keys(query).reduce((acc, cur) => {
            if (cur !== "redirect") {
              acc[cur] = query[cur];
            }
            return acc;
          }, {});
          router.replace({ path: redirect.value || "/", query: otherQueryParams });
        }).catch(() => {
          loading.value = false;
          // 重新获取验证码
          if (captchaEnabled.value) {
            getCode();
          }
        });
      }
    });
  }

  function getCode() {
    getCodeImg().then(res => {
      captchaEnabled.value = res.captchaEnabled === undefined ? true : res.captchaEnabled;
      if (captchaEnabled.value) {
        codeUrl.value = "data:image/gif;base64," + res.img;
        loginForm.value.uuid = res.uuid;
      }
    });
  }

  function getCookie() {
    const username = Cookies.get("username");
    const password = Cookies.get("password");
    const rememberMe = Cookies.get("rememberMe");
    loginForm.value = {
      username: username === undefined ? loginForm.value.username : username,
      password: password === undefined ? loginForm.value.password : decrypt(password),
      rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
    };
  }

  function extractIpFirstNumber(url) {
    console.log(url)
    const urlObj = new URL(url);
    // 使用正则表达式匹配IP地址的第一个数字
    const ipPattern = /:\/\/([^\/:]+)(?=\:|$)/;
    const match = url.match(ipPattern);
    let domainPrefix = url.split('//')[1].split('.')[0];
    // if (match && match.length > 1) {
    //   // 返回第一个捕获组，即IP地址的首位数字
    //   domainPrefix = match[1];
    // } else {
    //   // 如果没有匹配到IP地址的首位数字，返回null或抛出错误
    //   domainPrefix = '';
    // }
    console.log(urlObj)
    const queryParams = {};
    urlObj.searchParams.forEach((value, key) => {
      queryParams[key] = value;
    });
    // 返回解析结果
    return {
      domainPrefix: domainPrefix,
      baseURL: `http://${domainPrefix}.${baseUrl.split('http://')[1]}`,
      queryParams: queryParams
    };
  }

  //获取域名并进行解析
  function getCurrentUrl() {
    const data = extractIpFirstNumber(window.location.href);
    loginGetCodeId({
      tenantId: data.queryParams.tenentID ? data.queryParams.tenentID : data.queryParams.tenant, //data.tenant ? data.tenant : '',
      tenantCode: data.domainPrefix //data.domainPrefix ? data.domainPrefix : ''
    }).then((res) => {
      if (res.code == 200) {
        setTenant(JSON.stringify(data));
        tenantData.value = res.data || {}
        const title = res.data.applicantName ? res.data.applicantName : import.meta.env.VITE_APP_TITLE;
        document.title = title; // 设置页面标题
      } else {
        router.push('/help')
      }
    }).catch(() => {
      router.push('/help')
    })
  }
  removeTenant()
  Promise.all([getCurrentUrl()]).then(() => {
    getCookie();
  })
</script>

<style lang='scss' scoped>
  .login {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background-image: url("../assets/images/background.jpg");
    background-size: cover;
  }

  .title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #707070;
  }

  .login-form {
    border-radius: 6px;
    background: #ffffff;
    width: 400px;
    padding: 25px 25px 5px 25px;

    .el-input {
      height: 40px;

      input {
        height: 40px;
      }
    }

    .input-icon {
      height: 39px;
      width: 14px;
      margin-left: 0px;
    }
  }

  .login-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
  }

  .login-code {
    width: 33%;
    height: 40px;
    float: right;

    img {
      cursor: pointer;
      vertical-align: middle;
    }
  }

  .el-login-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
  }

  .login-code-img {
    height: 40px;
    padding-left: 12px;
  }
</style>